| 摘要 |
PROBLEM TO BE SOLVED: To simplify a mechanism and reduce the cost thereof by brining an inclined surface of an adjusting device into contact with a carriage supporting a wheel (sash roller) and moving the inclined surface by a screw or the like to vertically move the wheel, thereby changing the position of a door frame. SOLUTION: A wheel assembly 1 is formed by supporting wheels 5a, 5b by a carriage 4 and installing an adjusting device 9 which is stored in a housing 2 in such a manner as to be freely moved up and down and has two engagement surfaces (inclined surface) 20a, 20b. The assembly 1 is fitted to a lower frame of a slide door, and the slide door can be opened and closed smoothly along a rail or a groove. In the case of adjusting the position (height) of the door, when a gap between adjusting elements 9a and 9b is expanded by an adjust screw, the carriage 4 is lowered along the inclined surfaces 20a, 20b to push down the wheels 5a, 5b and push up the door. After the position (height) of the door is adjusted, it is fixed in a designated position. Thus, the position of the door can be easily controlled. |
